US7178189B1 - Mop with clamping assembly - Google Patents
Mop with clamping assembly Download PDFInfo
- Publication number
- US7178189B1 US7178189B1 US10/303,289 US30328902A US7178189B1 US 7178189 B1 US7178189 B1 US 7178189B1 US 30328902 A US30328902 A US 30328902A US 7178189 B1 US7178189 B1 US 7178189B1
- Authority
- US
- United States
- Prior art keywords
- mop
- clamping assembly
- rod
- release
- handle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
- 230000007935 neutral effect Effects 0.000 claims abstract description 28
- 210000003128 head Anatomy 0.000 claims description 51
- 238000004140 cleaning Methods 0.000 claims description 31
- 230000000994 depressogenic effect Effects 0.000 claims description 16
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000881 depressing effect Effects 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/14—Scrubbing; Scouring; Cleaning; Polishing combined with squeezing or wringing devices
- A47L13/144—Scrubbing; Scouring; Cleaning; Polishing combined with squeezing or wringing devices having squeezing rollers
Definitions
- the present invention pertains to a mop and, in particular, a mop having a clamping assembly.
- Mops having handles or levers for retracting the mop head in order to wring liquid from an absorbent mechanism, such as a sponge, attached to the mop head are well known.
- Such mops may include a sponge which is permanently attached to an end of the mop head, but is movable between a pair of rollers in order to compress the sponge and squeeze the liquid from the sponge.
- Such mops require that when the sponge is no longer able to clean properly, the entire mop including the mop head, mechanism and handle would have to be discarded.
- Other mops provided for disengagable sponges, for example by sliding the sponge assembly off of a bar at the end of the mop head. The removal of the sponges from such mops is difficult and requires the dirtying of the user's hands because the sponge must be grasped tightly in order to remove it from the mop head.
- This application discloses an embodiment which comprises a mop including an elongated handle having a bore and a mop head.
- a rod extends through the bore and a lever is attached to a first end of the rod and the lever pivotally attaches to the handle and is movable among a neutral position, a wringing position and a release position.
- a clamping assembly is attached at a second end of the rod and the clamping assembly clampingly engages a sponge and includes a hinge having a release arm.
- a roller is mounted to the mop head and a release member is attached to the handle so that upon activation of the release member, the lever may be moved to the release position, forcing the release arm to engage the roller in order to release the sponge from the clamping assembly.
- the hinge may be formed by a first leaf and a second leaf and each leaf includes a proximal end having a cylindrical eye and the release arm and a distal end which includes a flange and a pin interposed between each of the cylindrical eyes of each hinge leaf.
- the hinge may include a coil spring mounted on the pin in order to urge the clamping assembly to a closed position.
- a pair of legs may abut each release arm from the coil spring.
- each flange may grip a corresponding finger protruding from a top of the sponge in order to attach the sponge to the clamping assembly.
- a rib may run along a side of the sponge and an “L” shaped finger protrudes from the rib.
- the rod may include an attachment head at the second end of the rod for attachment to the clamping assembly.
- the attachment head includes a pair of cylindrically shaped couplers for receipt of the pin to attach the head to the hinge.
- the pair of cylindrical couplers may straddle a coil spring and the couplers are centered on the pin with the cylindrical eyes of each hinge leaf located toward each end of the pin.
- each release arm may protrude from each hinge leaf on opposing sides of the clamping assembly.
- each release arm may include a metal tab that extends at an angle from between 10 to 45 degrees from an axis formed transversely through the center of the clamping assembly, collinear with a longitudinal axis of the rod when the clamping assembly is in the closed position.
- the clamping assembly may move from the closed position to an open position when the clamping assembly is moved to a position adjacent the roller so that the release arm abuts the roller in order to pivot the hinge leaves to spread the flanges apart upon movement of the lever from the neutral position to the release position.
- each flange of the hinge leaf may pivot away from an “L” shaped finger protruding from the sponge in order to disengage the sponge from the clamping assembly.
- the hole includes a lead-in chamfer on a side of the body so that after release of the sponge from the clamping assembly and movement of the lever from the release position to the neutral position, the retaining sleeve engages the lead-in chamfer in order to force the button to slide back to its axially aligned position so that the retaining sleeve may slide back through the hole and back to a position where the lever is in the neutral position.
- the mop head may comprise a housing having a cavity for encasing the clamping assembly and for receiving the sponge therein in a retracted position.
- the mop head may also include therein the release member mounted thereto.
- a pair of rollers may be attached at the distal end of the mop head adjacent the cavity opening.
- the housing may include side openings from which the sponge may protrude.
- the housing may include a plurality of roller retainer members at its distal end.
- the mop head housing may include a plurality of ribs formed on an interior of the housing in order to guide the clamping assembly when it is slid in and out of the cavity.
- the housing may include a plurality of stop abutments formed on the interior of the housing in order to stop the clamping assembly from movement within the cavity and defining the wringing position of the lever.
- the sponge may be formed of a first half having a soft absorbent material and a second half of a semi-absorbent, durable material.
- a method is provided of disengaging a sponge from a mop comprising the steps of rotating a lever attached to a rod having a clamping assembly engaging a sponge, depressing a release member so that the rod may pass therethrough, pushing the rod through a handle of the mop so that the clamping assembly engages a pair of rollers causing the clamping assembly to open and releasing the sponge from between a pair of flanges at the end of the clamping assembly in order to disengage the sponge.
- FIG. 1 is a perspective view of the mop of the present invention
- FIG. 2 is an exploded view of the mop of FIG. 1 ;
- FIG. 3 is a side view of the mop head of FIG. 1 in its neutral position with portions broken away;
- FIG. 4 is an exploded view of the mop head of FIG. 3 ;
- FIG. 5 is an enlarged perspective view of the mop head of FIG. 3 , partially disassembled;
- FIG. 6 is a view similar to FIG. 5 showing the mop head in its retracted wringing position
- FIG. 7 is a perspective view of the mop head of FIG. 3 ;
- FIG. 8 is a side elevation view of the mop head of FIG. 3 shown in its released position
- FIG. 8 a is an enlarged, fragmentary view in partial sections of a portion of the mop head of FIG. 8 designated by the circle 8 a;
- FIG. 9 is an enlarged, exploded perspective view of the lever of the mop of FIG. 1 ;
- FIG. 10 is an exploded perspective view of the release member and rod of the present invention.
- FIGS. 1–9 a mop 10 is shown having a elongated handle 15 .
- the handle may be formed of wood, metal, aluminum, plastic or any other rigid durable material.
- the handle 15 includes a mop head 20 at one end and a grip 30 at the opposite end.
- the handle includes an axis bore 31 formed therein and received within the bore is a rod 35 (upper portion broken away in FIG. 2 ).
- the rod 35 extends from the mop head 20 through the bore 31 and up through the handle 15 , where it attaches to lever 40 .
- a slit 42 is provided in the handle 15 through which a first end 16 (see FIGS.
- a sleeve 45 is placed around the handle 15 in order to protect the slit 42 .
- the sleeve 45 includes a slit 42 a which corresponds with the slit 42 formed in the handle 15 .
- the lever 40 includes a pair of arms 47 , 48 that pivotally attach to the handle 15 . Any known fastening means may be used to attach the arms 47 , 48 to the handle 15 .
- the arms 47 , 48 are attached over the sleeve and the sleeve 45 is retained on the handle 15 via the attachment of the lever 40 therethrough.
- the rod 35 has a first end bent to protrude trough the slits 42 , 42 a for pivotal coupling to the lever 40 .
- FIG. 3 an enlarged view of the mop head 20 is depicted showing a housing 60 partially cut away to reveal the release member 90 mechanism of the mop 10 .
- the housing 60 is attached to the handle 15 and includes rollers 51 , 52 attached at the distal end 61 of the housing. Protruding from the bore 31 of the handle 15 is the rod 35 . Attached at a second end 62 of the rod 35 is a clamping assembly 70 .
- the clamping assembly includes a pair of release arms 71 , 72 formed as part of a hinge 75 which includes a pair of flanges 76 , 77 which clamp onto fingers 81 , 82 protruding from the sponge 50 .
- a release member or button 90 which includes a body 92 having a hole formed therein for receiving retaining sleeve 95 .
- FIG. 3 depicts the button 90 in its non-depressed position so that the hole is not axially aligned to the rod 35 , so that the retaining sleeve 95 cannot pass through the hole and the rod 35 is maintained in its neutral position.
- the sponge 50 In the neutral position, the sponge 50 is maintained extended below the rollers 51 , 52 in an expanded state so that the mop 10 may be used to clean surfaces such as a floor.
- FIG. 4 depicts an exploded view of the mop head 20 of the present invention.
- the housing 60 is formed of a first half 94 and a second half 93 .
- Formed in each half 93 , 94 is a passage 96 , 97 for receiving the release button 90 and retaining button 98 .
- the release button 90 includes a body 92 having a hole 100 formed therein and a latch arm 102 .
- the release button is inserted in passage 97 and is attached to retaining button 98 .
- the release button 90 is spring mounted to the retaining button 98 and slides on the retaining button 98 between a depressed and non-depressed position.
- the distal end 61 of the housing 60 includes rollers 51 , 52 attached thereto by attachment members 105 , 106 .
- the housing 60 forms a cavity 110 for receiving the clamping assembly 70 and sponge 50 therein.
- Also mounted within the housing 60 is rod 35 along the longitudinal axis L.
- the first end 16 of the rod 35 protrudes through the neck 103 to which the handle 15 is attached.
- the rod 35 protrudes up through the handle 15 and attaches to the lever 40 .
- the second end 114 of the rod 35 includes an attachment head 115 .
- the attachment head 115 includes a pair of cylindrical couplers 118 , 119 in order to attach the rod 35 to the clamping assembly 70 .
- the clamping assembly 70 consists of a hinge formed of a first leaf 121 and a second leaf 122 .
- Each leaf 121 , 122 includes a proximal end 124 a , 124 b having a pair of cylindrical eyes 125 , 126 , 127 , 128 .
- Also on the proximal end 124 a , 124 b is a release arm 131 , 132 .
- Each distal end 130 a , 130 b includes a flange 76 , 77 .
- the hinge is made of metal and each release arm 131 , 132 is a metal tab angled from between 10 to 45 degrees from an axis formed transversely through the center of the clamping assembly collinear with a longitudinal axis of the rod when the clamping assembly is in a closed position.
- a coil spring 134 is situated in the gap between the cylindrical couplers 118 , 119 of the attachment head 115 .
- the coil spring 134 includes a pair of legs 135 , 136 that urge the hinge to a closed position.
- the attachment head 115 is assembled to the clamping assembly 70 by inserting pin 137 through the cylindrical eye 128 of the second leaf 122 , then through the cylindrical eye 126 of first leaf 121 , then through the coupler 118 , then through coil spring 134 , then through the coupler 119 , then through the cylindrical eye 127 and finally through the cylindrical eye 125 of first leaf 121 .
- the pivotal hinge is formed which provides for a clamping assembly 70 in order to clamp onto L-shaped fingers 141 , 142 , 143 protruding from a rib 145 formed at a top 146 of the sponge 50 .
- the clamping assembly 70 operation will be explained in more detail below and includes an annular recess 148 for engaging an annular protrusion 155 protruding from within the hole 100 of the release button 90 .
- a retaining sleeve 95 is assembled onto the rod 35 and includes an annular recess 148 for engaging an annular protrusion 155 protruding from within the hole 100 of the release button 90 .
- the retaining sleeve 95 is mounted so that when the rod 35 is in a neutral position with the sponge 50 oriented below the rollers 51 , 52 in an expanded position, the retaining sleeve 95 is oriented above and abuts the side of the body 92 of the release button 90 adjacent the hole 100 .
- FIG. 5 depicts the mop head 20 in a partially unassembled form having the first half 94 of housing 60 assembled with the handle 15 .
- second half 93 of the housing 60 has been removed to expose the inner mechanism of the mop head 20 .
- the release button 90 In the neutral position, where the sponge 50 is extended for cleaning surfaces such as a floor, the release button 90 is in a non-depressed position and the hole 100 is not axially aligned with the longitudinal axis L or the rod 35 and therefore retaining sleeve 95 cannot slide therethrough and is abutting against the side of the body 92 of the button 90 in order to keep the rod 35 and lever 40 from moving to the release position.
- the first half 94 includes a plurality of ribs 150 that protrude into the cavity 110 but include shaped or tapered edges in order to guide the clamping assembly as it is moved through the cavity 110 .
- the ribs 150 also form stop abutments 151 in order to limit the upward movement of the clamping assembly 70 and the rod 35 .
- the stop abutment 151 abuts the clamping assembly 70 as the sponge is moved to its wringing position ( FIG. 6 ).
- the clamping assembly 70 is depicted in FIG.
- first leaf 121 attached to second leaf 122 hinged about pin 137 having cylindrical eyes 125 , 126 , 127 , 128 mounted on the terminal ends of the pin 135 and the cylindrical couplers 118 , 119 of the attachment head 115 of the rod 35 straddling a coil spring 134 at the center of the pin 135 .
- the clamping assembly 70 is clamped to the rib 145 of the sponge 50 .
- FIGS. 6 , 7 , 8 and 8 a the operation of the mop will be explained in sequence from the wringing position ( FIG. 6 ) to the neutral position ( FIG. 7 ) and the release position ( FIG. 8 ).
- FIG. 6 discloses the mop head 20 in the wringing position having the sponge 50 in a compressed state between the rollers 51 , 52 .
- the lever 40 is moved to a position where the gripping member 49 is closest to the grip 30 at the end of the handle 15 . In this position, the rod 35 is pulled upward through the bore 31 of the handle 15 so that the retaining sleeve 95 is moved away from the neck 103 of the housing 60 .
- the fingers 141 , 142 , 143 may also be bent at an acute angle so that when they engage the flanges 76 , 77 , the sponge 50 cannot easily disengage from the clamping assembly 70 because the flanges 76 , 77 and fingers 141 , 142 , 143 must separate vertically a distance so that the flanges 76 , 77 can open and separate horizontally and pivot on the hinge to the open position and release the sponge 50 ( FIG. 8 ).
- the flanges 76 , 77 are bent at approximately 80° from each of the leaves 121 , 122 and the fingers 141 , 142 , 143 are bent at approximately 80° from the longitudinal axis L of the rod 35 .
- the clamping assembly 70 pulls the sponge 50 through the rollers 51 , 52 and compresses the sponge therebetween in order to squeeze moisture from the sponge.
- three separate rollers are provided on each side of the housing 60 .
- the sponge 50 is received within the cavity 110 with its two ends protruding through side openings of the housing 60 .
- the mop 50 performs dual cleaning functions via a first portion 161 formed of a durable material such as urethane and a second portion 162 formed of a highly absorbent material such as cellulose.
- This dual function sponge 50 provides for efficient cleaning and long life of the sponge by allowing for the first portion 161 to be used for scrubbing of dirty areas and the second portion 162 to absorb liquid.
- the sponge 50 may be released from the mop head 20 as shown in FIG. 8 and FIG. 10 , by depressing release button 90 so that the hole 100 of the release button 90 is axially aligned with a hole 103 in the retaining button 98 , the retaining sleeve 95 and also the longitudinal axis L.
- the retaining sleeve 95 may slide through the hole 100 of the release button 90 allowing the rod 35 to slide downward through the bore 31 of the handle 15 .
- the sleeve 95 may be a ring or other shaped member.
- the release button 90 spring mounted within the rectangular aperture 163 of the retaining button and the rod 35 is inserted through the holes 100 , 103 .
- the key-shaped hole 100 of the release button 90 must be depressed so that the large portion of the hole 100 is aligned with hole 103 so that the sleeve 95 may pass therethrough Therefore, it may be understood that while one hand is gripping the housing 61 and depressing release button 90 , the other hand of the operator is grasping the lever 40 and rotating it toward the mop head 20 .
- the rod 35 moves downward so that the attachment head 115 pushes the clamping assembly 70 downward in a position between the rollers 51 , 52 so that the release arms 131 , 132 abut the edges of the rollers 51 , 52 and cause the hinge to pivot in order to spread the distal end 61 and flanges 76 , 77 apart and release the L-shaped fingers 141 – 143 and the sponge 50 . Therefore, it may be understood that the lever 40 , release member 90 , clamping assembly 70 and rollers 51 , 52 combine to form a position adjustment assembly of the mop and without having to touch the sponge 50 with a hand, the sponge 50 may be released from the mop head 20 by depression of the release button 90 and pivoting the lever 40 .
- the release button 90 may include a safety release so that when the lever 40 is depressed with a large force and the retaining sleeve 95 is forced against the body 92 without depressing the release button 90 the retaining sleeve 95 abuts against a chamfered notch on the body 92 of the button 90 in order to engage the button body 92 and cause the button 90 to move to its depressed position with the hole 100 aligned with the longitudinal axis L so that the retaining sleeve 95 may slide through.
- the clamping assembly 70 is maintained in its open position by locking the clamping assembly between the rollers 51 , 52 via the retaining sleeve 94 annular recess 148 abutting the annular protrusion 155 within the hole 100 of the release button 90 ( FIG. 8 a ).
- the release button 90 is spring mounted to the retaining button 98 so that it is biased to the non-depressed position and the annular protrusion engages the annular recess 148 to hold the retaining sleeve 95 and rod 35 in the release position while a new sponge can be inserted between the flanges 76 , 77 of the clamping assembly 70 .
- the release button 90 is fully depressed in order to disengage the annular protrusion 155 from the annular recess 148 so that the retaining sleeve 95 can be removed from within the hole 100 of the release button 90 .
- the lever 40 is rotated from the wringing position, after a new sponge is attached to the clamping assembly 70 , to the neutral position.
- the retaining sleeve 95 passes through the hole 100 of the release button 95 so that the rod 35 , sponge 50 and lever 40 may return to the neutral position.
- FIG. 9 discloses a exploded perspective view of the lever 40 showing the gripping member 49 rotatably mounted between a pair of spindles 165 , 166 .
- Arms 47 , 48 include support member 170 , 171 having a pin 173 mounted therein to support the two members.
- Each arm 47 , 48 includes an aperture 178 for receiving a fastener in order to attach the lever 40 to the handle 15 .
- a portion of the pin 173 is exposed after assembly within support members 170 , 171 and a hook is mounted thereto that is formed at the end of the rod 35 .
- the pin 173 can rotate upon pivoting of the lever 40 pulling or pushing the rod 35 .
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- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
Description
Claims (30)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/303,289 US7178189B1 (en) | 2002-11-25 | 2002-11-25 | Mop with clamping assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/303,289 US7178189B1 (en) | 2002-11-25 | 2002-11-25 | Mop with clamping assembly |
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US7178189B1 true US7178189B1 (en) | 2007-02-20 |
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US10/303,289 Expired - Lifetime US7178189B1 (en) | 2002-11-25 | 2002-11-25 | Mop with clamping assembly |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080178405A1 (en) * | 2007-01-12 | 2008-07-31 | The Libman Company | Integrated Mop System |
US20090293216A1 (en) * | 2008-06-03 | 2009-12-03 | Lee Pil Hee | Detachable multifunctional cleaner |
US20100017978A1 (en) * | 2004-01-02 | 2010-01-28 | Sonicscrubbers, Llc | Cleaning apparatus with reciprocating brush head |
US20100101039A1 (en) * | 2008-10-28 | 2010-04-29 | Michael Alan Cameneti | MOP convenient for the replacement of the consumptive material |
US20110047733A1 (en) * | 2008-01-29 | 2011-03-03 | Jiang Weilai | Self-wringing mop |
US8943638B1 (en) | 2013-09-30 | 2015-02-03 | Armaly Sponge Company | Floor mop |
US9161670B1 (en) * | 2014-06-26 | 2015-10-20 | Worldwide Integrated Resources, Inc. | Sponge roller mop with quick release mechanism to remove a dirty sponge from the housing without having to touch the dirty or contaminated sponge |
CN105996608A (en) * | 2016-07-28 | 2016-10-12 | 无锡普瑞腾传动机械有限公司 | Gear marketing frame |
US9498100B2 (en) | 2013-11-15 | 2016-11-22 | S.C. Johnson & Son, Inc. | Apparatus to retain a cleaning implement |
US9565985B1 (en) * | 2015-09-12 | 2017-02-14 | Worldwide Integrated Resources, Inc. | Sponge roller mop with quick release mechanism to remove a dirty sponge from the housing without having to touch the dirty or contaminated sponge also including a shotgun sponge wringing mechanism |
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US8533886B2 (en) | 2004-01-02 | 2013-09-17 | Rubbermaid, Incorporated | Cleaning apparatus with reciprocating brush head |
US20100017978A1 (en) * | 2004-01-02 | 2010-01-28 | Sonicscrubbers, Llc | Cleaning apparatus with reciprocating brush head |
US7836538B2 (en) | 2004-01-02 | 2010-11-23 | Sonicscrubbers, Inc. | Cleaning apparatus with reciprocating brush head |
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US8046863B2 (en) * | 2007-01-12 | 2011-11-01 | The Libman Company | Integrated mop system |
US8522388B2 (en) * | 2008-01-29 | 2013-09-03 | 3M Innovative Properties Company | Self-wringing mop |
US20110047733A1 (en) * | 2008-01-29 | 2011-03-03 | Jiang Weilai | Self-wringing mop |
US8321990B2 (en) * | 2008-06-03 | 2012-12-04 | Lee Pil Hee | Detachable multifunctional cleaner |
US20090293216A1 (en) * | 2008-06-03 | 2009-12-03 | Lee Pil Hee | Detachable multifunctional cleaner |
US8065775B2 (en) * | 2008-10-28 | 2011-11-29 | Michael Alan Cameneti | Mop convenient for the replacement of the consumptive material |
US20100101039A1 (en) * | 2008-10-28 | 2010-04-29 | Michael Alan Cameneti | MOP convenient for the replacement of the consumptive material |
US8943638B1 (en) | 2013-09-30 | 2015-02-03 | Armaly Sponge Company | Floor mop |
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US9565985B1 (en) * | 2015-09-12 | 2017-02-14 | Worldwide Integrated Resources, Inc. | Sponge roller mop with quick release mechanism to remove a dirty sponge from the housing without having to touch the dirty or contaminated sponge also including a shotgun sponge wringing mechanism |
CN105996608A (en) * | 2016-07-28 | 2016-10-12 | 无锡普瑞腾传动机械有限公司 | Gear marketing frame |
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